import logging

from redis import StrictRedis


class Config(object):
    """项目配置"""

    SECRET_KEY = '7u4Mu3H7mqx1/D/GlT+R51I7Lbv8LklAcCSv340KSiksh6xquLJgzRFygyIi2Ws7'

    # 为数据库添加配置
    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:@127.0.0.1:3306/information'
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    # 在请求结束时候，如果指定此配置为 True ，那么 SQLAlchemy 会自动执行一次 db.session.commit()操作
    SQLALCHEMY_COMMIT_ON_TEARDOWN = True

    # 为redis添加配置
    REDIS_HOST = '127.0.0.1'
    REDIS_PORT = 6379

    # session保存配置
    SESSION_TYPE = 'redis'
    # 开启session签名
    SESSION_USE_SIGNER = True
    # 指定Session 保存的redis
    SESSION_REDIS = StrictRedis(host=REDIS_HOST, port=REDIS_PORT)
    # 设置需要过期
    SESSION_PERMANENT = False
    # 设置过期时间为 2 天
    PERMANENT_SESSION_LIFETIME = 86400 * 2

    # 设置日志等级
    LOG_LEVEL = logging.DEBUG


class DevelopmentConfig(Config):
    """开发环境下的配置"""
    DEBUG = True


class ProductionConfig(Config):
    """生产环境下的配置"""
    DEBUG = False
    LOG_LEVEL = logging.WARNING


class TestingConfig(Config):
    """单元测试下的配置"""
    DEBUG = True
    TESTING = True


config = {
    'development': DevelopmentConfig,
    'product': ProductionConfig,
    'test': TestingConfig
}
